Ozone treatment for composite paperboard/polymer package

Details Ozone treatment for composite paperboard/polymer package Ozone treatment for composite paperboard/polymer package

1996-06-20

1998-01-06

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Flame contact or reshaping by heat decomposition of work

264515, 264516, B29C 4920

Patent

active

057051097

ABSTRACT:
In the manufacture of composite paperboard/polymer packages, the adhesion between the polymer component and paperboard component can be enhanced by treating the polymer film with a surface treatment, for example, ozone, before the two components are brought together. The present invention is particularly applicable to a blow molding process employing one or more paperboard blanks and a blow molded polymer film.

REFERENCES:
patent: 3207822 (1965-09-01), Makowski
patent: 4015033 (1977-03-01), Nield
patent: 4513036 (1985-04-01), Thompson et al.
patent: 4803024 (1989-02-01), Nilsson
patent: 4933123 (1990-06-01), Yoshida et al.
patent: 5009939 (1991-04-01), Goldberg
patent: 5122399 (1992-06-01), Farrell et al.
patent: 5169470 (1992-12-01), Goldberg
"Use of Ozone Can Improve Production Environment", by P.B. Sherman, Paper, Film and Foil Converter, Oct. 1994 pp. 42-43.
"The Benefits of Ozone in Extrusion Coating", by P.B. Sherman, (Internal Publication -no date), pp. 1-9.
"Some Attempts to Improve Adhesion in Extrusion Coating by Ozone Treatment", by C.J. Johansson, (Internal Publication) dated Aug. 31, 1981, pp. 1-10.
"Adhesion Promotion By Ozone Treatment", by B.H. Gregory, D. Michiels and W.D. McIntyre (Internal Publication -no date) pp. 1-6.

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